First off essential oils that involve peppermint, eucalyptus, cinnamon, cardamon etc. are never to be used on the genitals or on any area that has mucous membranes such as at or near the eyes or nose. Sounds like the lady you saw did not know what she was doing, or has no training what so ever in the proper use of essential oils. Even certain oils bought off store shelves will have certain ingredients in them that could potentially cause an allergic reaction and should not be used on the genitals, same goes for certain lotions.
The only thing you should use is oils that have no additives, such as grape seed oil, sesame oil, Cocoa butter Shea, or a product specifically designed to be used on the skin and for the genital areas.
Even certain products like K-Y's intense products for ladies and men can cause a burning sensation for sensitive individuals.
If you are prone to allergies you may want to have your masseuse test an area of your skin first before proceeding with essential oils.
Originally Posted by Sensia
Yes she did not know what she was doing. Before using any kind of oil you must educate yourself on what you're using. I make bath and spa products and these oils (peppermint, eucalyptus, etc ) each have different levels of skin safeness, all have a different flashpoint, and these in particular are photo-toxic (they may be fine while you're recieving the massage but may burn you or cause irritation when you come in contact with sunlight.)
For my rubs I mainly use grapeseed, coconut, avocado, peach kernel, shea butter, pistachio oil, or any other unscented, light oil. In a pinch baby oil is just fine. The darker and heavier an oil is the more susceptible it is to being photo toxic. As far as the oily residue, most of these oils do not clog the skin and helps to restore the upper dermis so the oilier the better, after a hot shower you will see an improvement in skin luster. Essential oils should be used for the aromatherapy effect, because it can only be used very sparingly on the skin.
Hope this helps also.
Ladies I buy bulk oils for my bath products so if you would like to purchase any of the oils I listed please let me know.